Messages are an important part of diagnosing problems, so it's essential that you have access to them and that they are at the correct level. In some cases, you may get message catalog errors. This usually means that the message catalog couldn't be located or loaded. Check that your NLSPATH
environment variable includes the path where the message catalog is located. The AIX environment variable NLSPATH is used by the various PE components to find the appropriate message catalogs.
If the message catalogs are not in the proper place, or your environment variables are not set properly, your System Administrator can probably help you. Refer your system administrator to National Language Support for more information. There's really no point in going on until you can read the real error messages!
The following are the IBM Parallel Environment for AIX message catalogs:
There are a number of places that you can find PE messages:
You can also specify that diagnostic messages be logged to a file in /tmp on each of the remote nodes of your partition by using the MP_PMDLOG environment variable. The log file is called /tmp/mplog.jobid.taskid, where jobid is a unique identifier and taskid is the task number. The jobid will be the same for all remote nodes. This file contains additional diagnostic information about why the user connection wasn't made. If the file isn't there, then pmd didn't start. Check the /etc/inetd.conf and /etc/services entries and the executability of pmd for the root user ID again.
For more information about the MP_PMDLOG environment variable, see IBM Parallel Environment for AIX: Operation and Use, Vol. 1.
Knowing which component a message is associated with can be helpful, especially when trying to resolve a problem. As a result, PE messages include prefixes that identify the related component. The message identifiers for the PE components are as follows.
where:
For more information about PE messages, see IBM Parallel Environment for AIX: Messages.
Note that you might find it helpful to run POE or the parallel debugger as you use this chapter.
The Installation Verification Program (IVP) can be a useful tool for diagnosing problems. When you installed POE, you verified that everything turned out correctly by running the IVP. It verified that the:
The IVP can provide some important first clues when you experience a problem, so you may want to rerun this program before you do anything else.